Cranks Rubbing On Frame?

[charliet]

hello, i have got a rockman manus frame and the driveside crank is rubbing on the frame

Ihave a 127.5mm bottom bracket and the cranks that are on the monty kamel

What could i do to solve this problem?

Please help.

Charlie

[Franksx2005]

hello, i have got a rockman manus frame and the driveside crank is rubbing on the frame

Ihave a 127.5mm bottom bracket and the cranks that are on the monty kamel

What could i do to solve this problem?

Please help.

Charlie

With that bottom bracket you should be fine, the only thing you can do is get a crank with a higher offset.

i just checked and the cranks your using has a 26mm offset the cranks i was using had a 29mm. mine cleared but not by a great deal.

[charliet]

With that bottom bracket you should be fine, the only thing you can do is get a crank with a higher offset.

i just checked and the cranks your using has a 26mm offset the cranks i was using had a 29mm. mine cleared but not by a great deal.

would this bb work?

http://www.tartybikes.co.uk/product.php?product_id=11045&category_id=2

[Greetings]

Monty 221Ti cranks have a very small offset, I've been fighting with the same problem for many years now since I refuse to run anything else. The only proper way out is to replace the cranks.

The TMS bb will solve your problem but you'd better check the chanline before ordering. The additional width will change the chainline by 6mm.

[charliet]

Monty 221Ti cranks have a very small offset, I've been fighting with the same problem for many years now since I refuse to run anything else. The only proper way out is to replace the cranks.

The TMS bb will solve your problem but you'd better check the chanline before ordering. The additional width will change the chainline by 6mm.

Would a spacer solve this problem do you think?

[dirt jumper jake]

Would a spacer solve this problem do you think?

while ruining the cranks, yes.

[Greetings]

Depends on your setup. 221Ti cranks have a relatively short thread which is good enough for either a freewheel or a bashring and a screw on sprocket. They aren't really meant to be run with any sort of spacer, be it just a 3mm ring or a bash. Probably best if you give Tarty a ring.

[Matt Burrows]

Would a spacer solve this problem do you think?

Have you got plenty of clearance on the non-driveside crank? If so you could add a BB spacer onto the driveside cup and it might give you the extra clearance.

[CalopS]

Have you got plenty of clearance on the non-driveside crank? If so you could add a BB spacer onto the driveside cup and it might give you the extra clearance.

I did this with my manus with monty ti cranks to make it work.

It was really tight though. I had to try a few different sized spacers before both sides didn't rub.